//请求方法
function send(url,params,success,error){
    $.ajax({
        type: 'POST',
        data: params,
        url: url,
        dataType: 'json',
        contentType: 'application/x-www-form-urlencoded',
        cache:false,
        async:false,
        success: success,
        error: error
    });
}

function send2(url,params,success,error){
    $.ajax({
        type: 'POST',
        data: params,
        url: url,
        dataType: 'json',
        contentType: false,
        cache:false,
        async:false,
        processData: false,
        success: success,
        error: error
    });
}